Answer:
The final energy of the system is 168 J
Explanation:
Heat energy released to the surroundings,
Work done, W = 222 J
The initial internal energy,
The change in internal energy is given by the formula,
The final energy of the system is 168 J
Use conservation of momentum ;
m1u1 + m2u2 = m1v1 + m2v2
1200×15.6 + 0 = 2700v
v = 18720/2700
v = 6.933 or ~ 7 m/s
Answer:
Option b and c
Explanation:
Quantized values are discrete in nature and are not continuous.
These values can be expressed as integral multiples or integers.
Therefore,
- The pitch of notes played on trombone are of continuous form and are not quantized.
- The pitch of the notes that are played on a flute are dependent on the number of open and closed holes on the instrument, clearly discrete in nature thus quantized.
- The wavelength of light is produced as a result of transition of electron in between energy levels which occurs in discrete steps thus quantized.
- The wind speed at Mt. Everest's top is continuous and thus not quantized.
Answer:
I am sure the awnser to this is
B. vibrate